Contributor Institution:
Department of Botany, University of Karachi, Karachi.

General/Distribution:
A family of c. 40 genera and c. 1400 species, distributed in tropical, subtropical and a few in temperate regions. Represented in Pakistan by 5 genera and, of which 16 are native.

Comment/Acknowledgements:Acknowledgements: we are grateful to Prof. E.J.H. Corner (Cambridge), Mr. I.C. Hedge (Edinburgh) and Dr. C.C. Berg (Utrecht) for going through the manuscript and offering suggestions for its improvement. The financial assistance received form the United States Department of Agriculture under P.L. 480 with the coordination of the Pakistan Agricultural Research Council, Islamabad, is thankfully acknowledged.